Cute little boys always grow up, and in the case of bands such as New Edition and the Jackson 5, so does their material. IMx were rugrats when they first hit paydirt as Immature in the early '90s. But instead of adding a page to the Where Are They Now? file that contains most prepubescent, one-hit wonders, they've developed into capable singers. You might complain that this is the same milky, romantic R&B that flows from so many modern crooners, but most of them don't handle their vocal duties with such aplomb.